package pers.qianyu.month_202012.date_20201220.puzzle;

/**
 * 319. 灯泡开关
 * https://leetcode-cn.com/problems/bulb-switcher/
 *
 * @author mizzle rain
 * @date 2020-12-20 15:33
 */
public class BulbSwitch {
    public int bulbSwitch(int n) {
        return (int) Math.sqrt(n);
    }
}
